brainwave

Definitions of brainwave
  1. noun
    the clear (and often sudden) understanding of a complex situation
    synonyms: brainstorm, insight
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    types:
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    light
    mental understanding as an enlightening experience
    revelation
    an enlightening or astonishing disclosure
    breakthrough, discovery, find
    a productive insight
    flash
    a sudden brilliant understanding
    type of:
    apprehension, discernment, savvy, understanding
    the cognitive condition of someone who understands
  2. noun
    (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph
    synonyms: brain wave, cortical potential
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    alpha rhythm, alpha wave
    the normal brainwave in the electroencephalogram of a person who is awake but relaxed; occurs with a frequency of 8-12 hertz
    beta rhythm, beta wave
    the normal brainwave in the encephalogram of a person who is awake and alert; occurs with a frequency between 12 and 30 hertz
    delta rhythm, delta wave
    the normal brainwave in the encephalogram of a person in deep dreamless sleep; occurs with high voltage and low frequency (1 to 4 hertz)
    theta rhythm, theta wave
    the normal brainwave in the encephalogram of a person who is awake but relaxed and drowsy; occurs with low frequency and low amplitude
    type of:
    bioelectricity
    electric phenomena in animals or plants
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